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How do I find the size in tons of a DuctlessAire heat pump or air conditioner from the model number?
Tuesday, February 22, 2022
You can determine the size in tons of your DuctlessAire HVAC system by examining the model number on the data sticker at the side of the condenser (outdoor unit). Look for first two numbers in the middle of the series of letters and numbers. It should be a number divisible by 6 or 12, and represents the nominal BTU of the system in thousands. A ton of air conditioning equals 12,000 BTU so, using the DuctlessAire model number DA2421-H2 as an example, 24 divided by 12 equals 2, and the unit is 2 tons. The following two numbers are the SEER of the system.
Here’s a rundown of the range you will encounter: 12 = 1, 18 = 1.5, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons.
To determine the age of a DuctlessAire system, see our blog post How do I find the age of a DuctlessAire heat pump or air conditioner from the serial number?
To learn more about heating and air conditioning systems, see these other blog posts:
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